32
RTP port start
range
The value range is 1025-65535. The value of rtp port starts from
the initial value set. Each time a call is made, the value of the
voice and video ports is increased by 2
RTP port quantity
Number of calls
9.12
Network >> VPN
Picture 29 - Network VPN Settings
Virtual Private Network (VPN) is a technology to allow device to create a tunneling
connection to a server and becomes part of the server’s network. The network
transmission of the device may be routed through the VPN server.
For some users, especially enterprise users, a VPN connection might be required to be
established before activate a line registration. The device supports two VPN modes, Layer
2 Transportation Protocol (L2TP) and OpenVPN.
The VPN connection must be configured and started (or stopped) from the device web
portal.
L2TP
NOTICE! The device only supports non-encrypted basic authentication and
non-encrypted data tunneling. For users who need data encryption, please use
OpenVPN instead.
To establish a L2TP connection, users should log in to the device web portal, open page
[Network] -> [VPN]. In VPN Mode, check the “Enable VPN” option and select “L2TP”, then
fill in the L2TP server address, Authentication Username, and Authentication Password in
the L2TP section. Press “Apply” then the device will try to connect to the L2TP server.
